Improvements relating to building blocks,申请号GB19540027534-传众专利搜索

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发明名称	Improvements relating to building blocks
摘要
申请公布号	GB760545(A)	申请公布日期	1956.10.31
申请号	GB19540027534	申请日期	1954.09.23
申请人	PER JOHAN INGEMAR AHREL	发明人
分类号	E04B1/80	主分类号	E04B1/80
代理机构		代理人
主权项
地址

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